1000 subscribers, 4000 hours in the last 12 months, and you must have uploaded 3 videos I think in the last 3 months to be allowed to apply for monetization.
There is a different requirement if you only post shorts.
Also worth pointing out that they’ve demonetized people after meeting the old monetization requirements and then not meeting their new requirements. No grandfathering.
I shed a tear (and subscribe) when I encounter an incredibly useful video but they have “only” a few hundred subs.
There is a different requirement if you only post shorts.